delete an agent

Hello,

I am using the example : 'BabbleAgent' wich create an id for each agent and I am running my program on node red. When I deploy the application again, the id still there, and an error occurs ... Is there a way to delete an agent after its creation? In an old version here, there was a function (this.die()) but it doesn't work now (version 0.5.0)

Thank you :)